Wheel mounting means



April 30, 1946.

w. H. SILVER 2,399,36

WHEEL MOUNTING MEANS Original Filed May 5, 1941 3 FIG. I 6

C 64 e3 22\ L GI 62 44 i e9 /X/ I INVENTOR.

WALTER H. SILVER ATTORNEYS Patented Apr. 30, 1946 WHEEL MOUNTING MEANS Walter H. Silver, Moline, Ill., assignor to Deere & Company, Moline, Ill., a corporation of Illinois Original application May '5, 1941, Serial No. 391,918, now Patent No. 2,346,514, dated April 11, 1944. Divided and this application May 3, 1943, Serial No. 485,551 T V Claims.

This application is a division of my co.-pending United States application, Serial No. 391,918,

filed May 5, 1941, now United States Letters Patent 2,346,514, dated April 11, 1944.

The present invention relates generally to self interrupting clutch mechanisms for agricultural implements and the like and is particularly concerned with clutches of the half-revolution type arranged to raise and lower'the tools or other parts of an agricultural implement.

The object and general nature of the present invention is the provision of a new and improved connecting or clamping means for securing a ground wheel to the driving member of the clutch. More particularly, it is a feature of this invention to provide wheel securing means which does not interfere with the assembl or disassembly of the clutch mechanism or the lubri cant-tight sealing engagement between thecontrolling casing and the driving of the clutch.

These and other objects and advantages of the present invention will be apparent to those skilled in the art after a consideration of the following detailed description, taken in conjunction with the accompanying drawing illustrating the preferrediorm of this invention.

In the drawing:

Figure l is a sectional view taken generally axially through the crank axle, landwheel and clutch mechanism of an agricultural implement constructed and arranged according to the principles of the present invention;

Figure 2 is a perspective view of one of the taper locks forming a part of the means for fixing the ground wheel to the driving part of the clutch mechanism;

Figure 3 is a fragmentary perspective view of the hub of the ground wheel, showing the means by which the wheel is clamped in driving relation to the driving member of the clutch mechanism; and

Figure 4 is a detail section of one of the wheel clamping blocks.

The present invention has been illustrated as incorporated in the land wheel axle construction of a disk tiller similar to that shown in the parent application identified above or similar to that 7 shown in my prior United States Patent No.

'- 2,192,333, issued March 5, 1940. The crank axle entirety by the reference numeral 5, and a ground and driven parts wheel indicated in its entirety by the reference numeral '6, both being generally coaxially arranged. In general, the clutch 5 comprises driving and driven parts 8 and 9 which are adapted to be connected together by self-interrupting means Which is under the control of a rockable casing H which serves the dual purpose of controlling the clutch and also enclosing and protecting all operating parts of the clutch from dust, dirt and the like. The casing also serves to retain lubricant whereby the parts are adequately lubricated at all times, irrespective of the conditions under which the machine is operated.

Referring now more particularly to Figure 1, the driving or active member of the clutch is indicated by the reference numeral 9, as mentioned above, and comprises a relatively long sleeve !3 disposed about the axle section 2 of the crank axle The sleeve section is extends outwardly of the rockable casing H at one end, this end of the sleeve !3 receiving the land wheel 6 by means which will be described later. The inner end of the sleeve 9 is formed with a radial flange having outwardly facing external scallops or notches, and the driving member 9 of the clutch is journaled for rotation on a sleeve l5 which forms a part of the driven or inactive member 8 of the clutch. The sleeve I5 is supported for rotation on the axle section 2 of the crank axle l and extends outwardly of the casing H at the other side thereof, as indicated at It. Through suitable lugs or the like, the member 8 is connected with a crank member I8 which is also mounted for rotation on the axle section 2 and is connected with the frame of the implement whereby, when the clutch is driven, the crank axle I is swung downwardly or upwardly relative to the frame for raising or lowering the latter. The casing H is formed of two parts 2| and 22, suitably bolted or fastened together at 33, and. the central portions of the casing sections 2! and 22, being the portions through which the axle 2 and other parts extend, are provided with sealing means 25 and 26 cooperating with the clutch members 8 and 9. The present invention is not especially concerned with the particular details of the clutch 5, it being sufficient to note that there is a pair of strap members 21 and 28 which are connected at their outer ends (not shown) with the driven clutch member 9 and at their other ends carry a roller 3| which, in one position of the casing H, is adapted to engage one of the notches on the flange of the member 9, whereby the clutch is engaged and section of the driven clutch member 8.

the driving part drives the driven part. Movement of the casing ll relative to the driven part causes the roller 3| to be moved into or out of a notch on the member 9.

As mentioned above, the land wheel 6 is arranged to be connected in driving relation with the drivingm'eniberiiliof the clutch Tha -land wheel 6 includes a hub 4| which, as shown in Figure 3, is formed with a plurality of axially directed recesses 42 which are open at one end and at the other end terminate in a flange 43 which is apertured, as at 44. The radiallydnn'er edge of the flange or wall 43 'is recessed-as at 45, to provide a pair of shoulders "46 'whi'chzare adapted to engage opposite edges 4'! and 48 of a tapered block member 50 (Figure 2). The wh'eel damage-or destroy the sealing insert 26,

hub construction just described also .-.pr ovides ledges 5| and 52 which, as best shown in'Figure 3, are tapered in an axial direction, corresponding in degree of taper to the exterior surface 53 (-Figure -2) of the tapered block 50, upon which theledges -5| and-52 are-adapted-to seat. Preferably, there are a plurality of tapered blocks fiiiand each is provided with-a lug 54 which is apertured, as at 55, and tapped to receive a clamping-cap screw-56 (Figure-4) which is adapted to be inserted. through the opening 44 of the wall'43. -Also,*each tapered block 50 is provided with -a =radially inwardly directed lug 51 (see 'Figure 4) which is adapted to :beinserted into an opening -58 formed in the sleeve section 13 ofthe driving clutch member 9. The latter has asmany opening-s as-there aretapered blocks 58.

As best shown in Figure l, to provide for lubrication one of'the tapered-blocks 50has a radially 1 outwardly extendinglug 6 aligned'withthe inner en clutch -member '8 comes into alignment with the bored lugs 57 and BI, whereby lubricant passes through to the bearingof-the-driven-clutch members on the axle "section 2, as bestshownin Figure l.

Adust cap-5'! having sealingmeans GBengagingthe outerend of the driving-clutch member 9 is disposedabout the outer end of the sleeve A 'seconddust cap 69 is Welded-to-the crank-axle |-and carries sealing means lil-sealing-the outer endof thedrivensleeve 8. The lifting-crank I8 is held on the-axle bya cotter 'I|, and-as best shown in 'Figure 1, this: also-holds-the driving anddriven clutch-parts OHthB-ELXIE Thrust rings or we'aring'washers i2 aredisposed between the dust cap :61 and the laterally outer end-of the sleeve section l3 of the driving .clutch member --9, and a similar wearing -w-ashers '13 are disp'osedbetween theouterend of i the i driven -sleeve 'i'fi'andthe cap -69. On-the interior of theclutch, similar thrust washers 14 are disposed between the laterally inner end of the driving clutch member =9 and the flange section a of 'thesdriven lt will -be noted that, --in'- effect, :the casing is split -in :a (plane that-is merpendicular "to the axisof' theaxle-and-clutch parts and thatthese 275 parts are assembled before the wheel 6 is applied. In applying the casing about the parts the casing section 2| is applied over the ends of the sleeves l3 and Hi, from the right side as viewed in Figure 1, and the other casing section 22 is applied over the end or hub N5 of the driven clutchmember -8.

:In orderttoiaccommodatethis itype of assembly readily, any clamping means by which the wheel 6 is to be secured in place must, therefore, not interfere with the assembly of the casing nor It is forthatipurposeytherefore, that the openings 58 extend radially-inwardly from the outer cylindrical surface of the hub I3, with no parts extendingradially beyondthe surface of the hub. In .mounting the wheel onto the driving member 9 of-the'clutch, thetapered blocks 50 are first disposed in place with their lugs 5'! extending into theoperiings 58. Next the hub 4| of the Wheel 6 -.is disposed about the taper blocks, the flange 4 a of the wheel hub engaging the thinner ends of the taper blocks .50. 'The capscrews-56 may. then be inserted and, lastly, the wheelhub 4| drawn up onto the taper blocks, wedging the latter .firmly into engagement with thelsleeve |3 of the clutch without any danger of slippage or disconnection.

While 'I .have :shown'and described above .the preferred structure in which the principles of thepresent inven'tionhave been incorporated, it is to be understoodthatmy invention is-not to be limited .to the particular .means shown and described above,but.that,in fact, widely difierent means may be employed'iin-the practice of .the broader aspects of myinvention.

What 'I claim, therefore, and desire to secure by-LettersPatent is:

'ljThe combination of a wheelhaving ahub provided witha pluralityof inwardly facing reoesses and a radially inwardly extending flange, a rspindle adapted tonreceive said wheel, a plurality of tapered wedges adapted to be interlocked .with'said spindle, said wedges having portionshadapted to be disposed inthe recesses, re- ,spectively, of.said wheel hub andadjacentsaid flange, and meansacting-between the flangeand said portions for forcing the wheel hubonto-said tapered wedges and holdingthe' latter interlocked withvsaid spindle.

.'2.'The combination of a wheel having a hub provided with-a. plurality of inwardly facing recesses, a spindle adapted toreceive-said wheel, a plurality of tapered -=wedges adapted to be interlocked with said spindle, each wedge having a 1 lug :thereon, :the lugsof said tapered wedges being adapted to be disposed in .the recesses respectively, of said wheel hub andmeans-acting between the latter and said lugs for forcing the wheelhub onto saidtapered Wedges and holding the latter-interlockedwith said spindle, said wheel hub having'tapered shoulders adjacenthsaid recesses adaptedto bear-against the edges .ofasaid tapered wedges.

:3. Thewcombination of-a wheel having a-hub provided with a plurality of inwardly v facing. re- ,eesses, a spindle :adapted .to :receive :said =wheel, -a :p1l1la1lty'0f tapered wedges adapted to be interlocked with saidsspindle, :each wedge having '3 ,1ug thereon, the lugs of sa-id tapered -wedges bei-ng. adapted-to be disposed. in the recesses, respective1y,-.of said wheelhub andrmeans acting rbetween-thelattenandsaidlugsior forcing the wheel hub having a. flange forming one end of each of said inwardly facing recesses, said flange being apertured in alignment with each recess, and bolt means passing through the apertures in said flange and engaging the lugs on said tapered wedges for forcing the wheel hub onto said tapered wedges and holding them interlocked with said spindle.

4. The combination of a wheel having a hub provided with a plurality of inwardly facing recesses, a spindle adapted to receive said wheel, a plurality of tapered wedges adapted to be interlocked with said spindle, each wedge having a lug thereon, the lugs of said tapered wedges being adapted to be disposed in the recesses, respectively, of said wheel hub, and means acting between the latter and said lugs for forcing the wheel hub onto said tapered wedges and holding the latter interlocked with said spindle, said spindle having a plurality of apertures and said tapered wedges each having a lug adapted to be inserted in the associated aperture, said lugs and apertures forming the interlocking means between the tapered wedges and said spindle.

5. Means for attaching a wheel to a part to be connected therewith, said part being mounted for rotation on a support and having an interior recess extending therethrough to provide access to the bearing surfaces of said part and said support, said attaching means comprising a member adapted to be connected with said part in driving connection therewith, an inwardly directed hollow lug carried by said member and adaptedto enter said recess, a lubricant fitting mountedon said lug, cooperating means on said wheel and. said member whereby the latter is clamped in position on said part with said lug in said recess when said wheel is clamped tosaidmember, and means forming an opening in the wheel adapted to be disposed in alignment with said lug so as to receive said lubricant fitting when the wheel is mounted in said position on said part with said lug in said recess.

6, In a wheel mounting, a support, a sleeve member mounted for rotation on said support and having a recess extending through said sleeve member into communication with the bearing surfaces on said sleeve member and said support, means for non-rotatably mounting said wheel on said sleeve member and including a part extending into and non-rota-tably interlocked with said recess.

'7. In a: combination wheel and clutch mounting for agricultural implements and the like having a crank axle carrying said mounting, the latter comprising a driven sleeve mounted for rotation on said crank axle, a driving sleeve mounted for rotation on said driven sleeve, said sleeves having lubricant-receiving recesses adapted to register with one another so as to provide for directing lubricant to the bearing surfaces of said crank axle and said driven sleeve, the latter having a crank, wheel mounting means adapted to be mounted on said driving sleeve and including a mounting part having an apertured lug seating in the recess in said driving member, and a lubricant fitting carried by said apertured lug for directing lubricant into the recess in said driving member, said latter recess communicating with the contiguous bearing surfaces and said driving and driven sleeves, whereby lubricant may be directed to said latter surfaces in any position of said wheel and driving sleeve on said driven sleeve, the recess in said driven sleeve and said crank carried thereby being so related that when the crank is in a given position relative to said lubricant fitting, said recessesare in registration and lubricant may fiow from said fitting through both of said recesses into the contiguous bearing sur faces on said crank arle and said driven sleeve, and means whereby said wheel is interlocked in driving relation with the member having said lug and whereby the latter is held with said lug in the recess in said driving sleeve.

8. The combination set forth in claim 7, further characterized by said driving sleeve having a plurality of recesses, there being a plurality of attaching members having lugs disposed, respectively, in the recesses in said driving sleeve, said wheel having a hub with an opening adapted to register with the apertured lug carrying said lubricant fitting whereby when said wheel is turned to carry the lubricant fitting into a given position relative to said crank, the recess in said driven sleeve comes into registration with the lug carrying said lubricant, whereby lubricant may be directed through both of said recesses into the bearing surfaces on said crank axle and said driven sleeve.

9. A coupling device for a rotatable wheel adapted to be mounted on a support and including a hub, said device comprising a spindle rotatable on said support, and having an opening therethrough, a part having a lug seating in said opening, means for fixing said wheel hub to said part in non-rotatable relation, said lug being hollow, and a lubricant fitting carried by said lug and adapted to supply lubricant through said hollow lug into the bearing surfaces on said spindle and support.

10. A coupling device for a rotatable wheel adapted to be mounted on a support and including a hub, said device comprising a spindle rotatable on said support, and having an opening therethrough, a part having a lug seating in said opening, means for interlocking said wheel hub with said part and the latter with said spindle, thereby fixing said wheel hub to said part and said part to said spindle, said lug having an opening therethrough communicating with said spindle opening, a lubricant fitting carried by said lug and adapted to supply lubricant through said communicating openings into the bearing surfaces on said spindle and support, and means forming an opening in the wheel adapted to be disposed in alignment with said lug so as to receive said lubricant fitting.

WALTER H. SILVER. 

